Chahnges to 0.4:

  o fix a bug in Kullback-Leibler-distance

Changes to 0.3:

  o fixed Gower-dissimilarity
  o fixed dist/simil subsetting
  o self-proximities now default to NA

Changes to 0.2:

  o data frames are auto-converted to matrices if all variables are 
    either numeric, logical, or complex (to be compatible to 
    stats::dist)
  o pairwise distances can now be computed
  o Registry is now case-insensitive

Changes to 0.1:

  o Initial release